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Submission #995130

# Submission time Handle Problem Language Result Execution time Memory
995130 2024-06-08T13:41:39 Z mrwang Strange Device (APIO19_strange_device) C++14
100 / 100
 320 ms 54056 KB 
#include<bits/stdc++.h>
#define TASKNAME "codeforce"
#define pb push_back
#define pli pair<ll,ll>
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
using ll=long long;
const ll maxN=2e5;
const ll inf=3e18;
const ll mod=1e9+7;
ll n,A,B;
vector<pli>vec;
void solve()
{
    cin >> n >> A >> B;
    ll x=(A/__gcd(A,B+1))*B;
    bool ok=true;
    ll sum=0;
    for(int i=1;i<=n;i++)
    {
        ll l,r;
        cin >> l >> r;
        sum+=r-l+1;
        if((r-l+1)>=x)
        {
            ok=false;
        }
        l%=x;
        r%=x;
        if(l<=r)
        {
            vec.pb({l,r});
        }
        else
        {
            vec.pb({l,x-1});
            vec.pb({0,r});
        }
    }
    ll cc=A/(__gcd(A,B+1));
    if(inf/cc<B)
    {
        cout << sum;
        return;
    }
    if(ok==false)
    {
        cout << x;
        return;
    }
    sort(vec.begin(),vec.end());
    ll s = 0, hi = -1;
    for(int i = 0; i < vec.size(); i++){
        if(vec[i].fi > hi){
            s += (vec[i].se - vec[i].fi + 1);
            hi = vec[i].se;
        }
        else
        {
            s+=max(0ll,vec[i].se-hi);
            hi=max(hi,vec[i].se);
        }
    }
    cout << s << "\n";
}
int main()
{
    fastio
    //freopen(TASKNAME".INP","r",stdin);
    //freopen(TASKNAME".OUT","w",stdout);
    solve();
}

Compilation message

strange_device.cpp: In function 'void solve()':
strange_device.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for(int i = 0; i < vec.size(); i++){
      |                    ~~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 3 ms 1116 KB Output is correct
3 Correct 3 ms 1116 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 3 ms 1116 KB Output is correct
17 Correct 30 ms 5664 KB Output is correct
18 Correct 1 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 195 ms 41392 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 260 ms 53280 KB Output is correct
3 Correct 274 ms 53416 KB Output is correct
4 Correct 266 ms 53676 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 260 ms 53280 KB Output is correct
3 Correct 274 ms 53416 KB Output is correct
4 Correct 266 ms 53676 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 272 ms 53268 KB Output is correct
7 Correct 262 ms 53196 KB Output is correct
8 Correct 282 ms 53416 KB Output is correct
9 Correct 289 ms 53240 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 260 ms 53280 KB Output is correct
3 Correct 274 ms 53416 KB Output is correct
4 Correct 266 ms 53676 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 28 ms 5832 KB Output is correct
7 Correct 30 ms 5832 KB Output is correct
8 Correct 25 ms 5648 KB Output is correct
9 Correct 28 ms 5844 KB Output is correct
10 Correct 26 ms 5708 KB Output is correct
11 Correct 27 ms 5832 KB Output is correct
12 Correct 27 ms 5808 KB Output is correct
13 Correct 28 ms 5836 KB Output is correct
14 Correct 28 ms 5776 KB Output is correct
15 Correct 31 ms 5824 KB Output is correct
16 Correct 29 ms 5840 KB Output is correct
17 Correct 27 ms 5696 KB Output is correct
18 Correct 268 ms 53316 KB Output is correct
19 Correct 287 ms 53464 KB Output is correct
20 Correct 280 ms 53400 KB Output is correct
21 Correct 32 ms 5832 KB Output is correct
22 Correct 26 ms 5844 KB Output is correct
23 Correct 77 ms 19904 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 30 ms 5676 KB Output is correct
3 Correct 30 ms 6344 KB Output is correct
4 Correct 299 ms 53292 KB Output is correct
5 Correct 30 ms 5836 KB Output is correct
6 Correct 29 ms 5836 KB Output is correct
7 Correct 29 ms 5688 KB Output is correct
8 Correct 30 ms 5728 KB Output is correct
9 Correct 29 ms 5628 KB Output is correct
10 Correct 34 ms 5664 KB Output is correct
11 Correct 31 ms 5836 KB Output is correct
12 Correct 25 ms 5828 KB Output is correct
13 Correct 31 ms 5748 KB Output is correct
14 Correct 293 ms 53424 KB Output is correct
15 Correct 34 ms 5828 KB Output is correct
16 Correct 263 ms 53300 KB Output is correct
17 Correct 262 ms 54056 KB Output is correct
18 Correct 0 ms 344 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 3 ms 1116 KB Output is correct
3 Correct 3 ms 1116 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 3 ms 1116 KB Output is correct
17 Correct 30 ms 5664 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 452 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 195 ms 41392 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 260 ms 53280 KB Output is correct
31 Correct 274 ms 53416 KB Output is correct
32 Correct 266 ms 53676 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 272 ms 53268 KB Output is correct
35 Correct 262 ms 53196 KB Output is correct
36 Correct 282 ms 53416 KB Output is correct
37 Correct 289 ms 53240 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 28 ms 5832 KB Output is correct
40 Correct 30 ms 5832 KB Output is correct
41 Correct 25 ms 5648 KB Output is correct
42 Correct 28 ms 5844 KB Output is correct
43 Correct 26 ms 5708 KB Output is correct
44 Correct 27 ms 5832 KB Output is correct
45 Correct 27 ms 5808 KB Output is correct
46 Correct 28 ms 5836 KB Output is correct
47 Correct 28 ms 5776 KB Output is correct
48 Correct 31 ms 5824 KB Output is correct
49 Correct 29 ms 5840 KB Output is correct
50 Correct 27 ms 5696 KB Output is correct
51 Correct 268 ms 53316 KB Output is correct
52 Correct 287 ms 53464 KB Output is correct
53 Correct 280 ms 53400 KB Output is correct
54 Correct 32 ms 5832 KB Output is correct
55 Correct 26 ms 5844 KB Output is correct
56 Correct 77 ms 19904 KB Output is correct
57 Correct 0 ms 344 KB Output is correct
58 Correct 30 ms 5676 KB Output is correct
59 Correct 30 ms 6344 KB Output is correct
60 Correct 299 ms 53292 KB Output is correct
61 Correct 30 ms 5836 KB Output is correct
62 Correct 29 ms 5836 KB Output is correct
63 Correct 29 ms 5688 KB Output is correct
64 Correct 30 ms 5728 KB Output is correct
65 Correct 29 ms 5628 KB Output is correct
66 Correct 34 ms 5664 KB Output is correct
67 Correct 31 ms 5836 KB Output is correct
68 Correct 25 ms 5828 KB Output is correct
69 Correct 31 ms 5748 KB Output is correct
70 Correct 293 ms 53424 KB Output is correct
71 Correct 34 ms 5828 KB Output is correct
72 Correct 263 ms 53300 KB Output is correct
73 Correct 262 ms 54056 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 0 ms 348 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 3 ms 1116 KB Output is correct
80 Correct 308 ms 53300 KB Output is correct
81 Correct 301 ms 53248 KB Output is correct
82 Correct 292 ms 53420 KB Output is correct
83 Correct 298 ms 53588 KB Output is correct
84 Correct 320 ms 53528 KB Output is correct
85 Correct 315 ms 53940 KB Output is correct
86 Correct 81 ms 19904 KB Output is correct
87 Correct 1 ms 348 KB Output is correct